55646937 has 6 divisors (see below), whose sum is σ = 80378922. Its totient is φ = 37097952.

The previous prime is 55646909. The next prime is 55646939. The reversal of 55646937 is 73964655.

55646937 is a `hidden beast` number, since 556 + 4 + 6 + 93 + 7 = 666.

55646937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 48944016 + 6702921 = 6996^2 + 2589^2 .

It is not a de Polignac number, because 55646937 - 2⁸ = 55646681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55646892 and 55646901.

It is not an unprimeable number, because it can be changed into a prime (55646939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3091488 + ... + 3091505.

It is an arithmetic number, because the mean of its divisors is an integer number (13396487).

Almost surely, 2^55646937 is an apocalyptic number.

It is an amenable number.

55646937 is a deficient number, since it is larger than the sum of its proper divisors (24731985).

55646937 is a wasteful number, since it uses less digits than its factorization.

55646937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182999 (or 6182996 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The square root of 55646937 is about 7459.6874599409. The cubic root of 55646937 is about 381.7805108629.

The spelling of 55646937 in words is "fifty-five million, six hundred forty-six thousand, nine hundred thirty-seven".